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<< Click to Display Table of Contents >> Weather and environment |
  
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<< Click to Display Table of Contents >> Weather and environment |
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The weather and the environment play an important role in the structural performance of a concrete pavement. The daily variations in temperature and humidity have an influence on shrinkage and curling whilst annual rainfall affects the selection of drainage and erosion factors for the pavement and support layers.
Typical average values of temperature, humidity and rainfall that can be used in cncPAVE are shown below:
CITY |
Temp. deg C Low |
Temp. deg C Aver. |
Temp. deg C High |
Humid. % Aver. |
Annual rainfall Min., mm |
Annual rainfall Aver., mm |
Annual rainfall Max., mm |
Belfast |
6 |
13 |
20 |
62 |
408 |
842 |
1546 |
Bethlehem |
6 |
14 |
22 |
62 |
454 |
675 |
984 |
Bloemfontein |
7 |
16 |
24 |
55 |
378 |
560 |
999 |
Cape Town |
11 |
16 |
22 |
70 |
322 |
508 |
750 |
Durban |
16 |
21 |
25 |
74 |
606 |
1018 |
1307 |
Graaf-Reinet |
11 |
18 |
26 |
51 |
159 |
348 |
663 |
Johannesburg |
7 |
16 |
22 |
55 |
444 |
718 |
960 |
Kimberley |
11 |
18 |
26 |
47 |
179 |
419 |
761 |
Nelspruit |
14 |
20 |
27 |
64 |
408 |
777 |
1244 |
Pietermaritzburg |
12 |
18 |
26 |
68 |
691 |
927 |
1024 |
Pietersburg |
12 |
18 |
25 |
58 |
266 |
505 |
801 |
Pretoria |
9 |
18 |
25 |
56 |
429 |
704 |
1068 |
Potchefstroom |
9 |
17 |
25 |
54 |
365 |
625 |
980 |
Port Elizabeth |
13 |
18 |
22 |
71 |
407 |
662 |
1068 |
Upington |
11 |
20 |
28 |
40 |
83 |
195 |
501 |